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5933f6d2 | 1 | // SPDX-License-Identifier: GPL-2.0 |
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2 | /* |
3 | * SHcompact irqflags support | |
4 | * | |
5 | * Copyright (C) 2006 - 2009 Paul Mundt | |
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6 | */ |
7 | #include <linux/irqflags.h> | |
8 | #include <linux/module.h> | |
9 | ||
df9ee292 | 10 | void notrace arch_local_irq_restore(unsigned long flags) |
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11 | { |
12 | unsigned long __dummy0, __dummy1; | |
13 | ||
df9ee292 | 14 | if (flags == ARCH_IRQ_DISABLED) { |
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15 | __asm__ __volatile__ ( |
16 | "stc sr, %0\n\t" | |
17 | "or #0xf0, %0\n\t" | |
18 | "ldc %0, sr\n\t" | |
19 | : "=&z" (__dummy0) | |
20 | : /* no inputs */ | |
21 | : "memory" | |
22 | ); | |
23 | } else { | |
24 | __asm__ __volatile__ ( | |
25 | "stc sr, %0\n\t" | |
26 | "and %1, %0\n\t" | |
27 | #ifdef CONFIG_CPU_HAS_SR_RB | |
28 | "stc r6_bank, %1\n\t" | |
29 | "or %1, %0\n\t" | |
30 | #endif | |
31 | "ldc %0, sr\n\t" | |
32 | : "=&r" (__dummy0), "=r" (__dummy1) | |
df9ee292 | 33 | : "1" (~ARCH_IRQ_DISABLED) |
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34 | : "memory" |
35 | ); | |
36 | } | |
37 | } | |
df9ee292 | 38 | EXPORT_SYMBOL(arch_local_irq_restore); |
03fdb708 | 39 | |
df9ee292 | 40 | unsigned long notrace arch_local_save_flags(void) |
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41 | { |
42 | unsigned long flags; | |
43 | ||
44 | __asm__ __volatile__ ( | |
45 | "stc sr, %0\n\t" | |
46 | "and #0xf0, %0\n\t" | |
47 | : "=&z" (flags) | |
48 | : /* no inputs */ | |
49 | : "memory" | |
50 | ); | |
51 | ||
52 | return flags; | |
53 | } | |
df9ee292 | 54 | EXPORT_SYMBOL(arch_local_save_flags); |